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Read preference option per query (#3865)

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This commit is contained in:
Antonio Davi Macedo Coelho de Castro
2017-06-21 17:18:10 -03:00
committed by Natan Rolnik
parent 422723fa31
commit b6298feaa7
6 changed files with 832 additions and 12 deletions
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14
src/Adapters/Storage/Mongo/MongoCollection.js
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@@ -13,13 +13,13 @@ export default class MongoCollection {
// none, then build the geoindex.
// This could be improved a lot but it's not clear if that's a good
// idea. Or even if this behavior is a good idea.
find(query, { skip, limit, sort, keys, maxTimeMS } = {}) {
find(query, { skip, limit, sort, keys, maxTimeMS, readPreference } = {}) {
// Support for Full Text Search - $text
if(keys && keys.$score) {
delete keys.$score;
keys.score = {$meta: 'textScore'};
}
return this._rawFind(query, { skip, limit, sort, keys, maxTimeMS })
return this._rawFind(query, { skip, limit, sort, keys, maxTimeMS, readPreference })
.catch(error => {
// Check for "no geoindex" error
if (error.code != 17007 && !error.message.match(/unable to find index for .geoNear/)) {
@@ -35,13 +35,13 @@ export default class MongoCollection {
index[key] = '2d';
return this._mongoCollection.createIndex(index)
// Retry, but just once.
.then(() => this._rawFind(query, { skip, limit, sort, keys, maxTimeMS }));
.then(() => this._rawFind(query, { skip, limit, sort, keys, maxTimeMS, readPreference }));
});
}
_rawFind(query, { skip, limit, sort, keys, maxTimeMS } = {}) {
_rawFind(query, { skip, limit, sort, keys, maxTimeMS, readPreference } = {}) {
let findOperation = this._mongoCollection
.find(query, { skip, limit, sort })
.find(query, { skip, limit, sort, readPreference })
if (keys) {
findOperation = findOperation.project(keys);
@@ -54,8 +54,8 @@ export default class MongoCollection {
return findOperation.toArray();
}
count(query, { skip, limit, sort, maxTimeMS } = {}) {
const countOperation = this._mongoCollection.count(query, { skip, limit, sort, maxTimeMS });
count(query, { skip, limit, sort, maxTimeMS, readPreference } = {}) {
const countOperation = this._mongoCollection.count(query, { skip, limit, sort, maxTimeMS, readPreference });
return countOperation;
}